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Finding the Fourth Proportional to 86,860.42, 119,866.24 and 49,134.68

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Solution

The fourth proportional to 86,860.42, 119,866.24 and 49,134.68 is: 67,805.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,860.42 : 119,866.24 = 49,134.68 : x
  2. Step 2: Convert to fraction form
    86,860.42/119,866.24 = 49,134.68/x
  3. Step 3: Cross multiply
    86,860.42x = 119,866.24 × 49,134.68
  4. Step 4: Simplify right side
    86,860.42x = 5,889,589,345.20
  5. Step 5: Solve for x
    x = 5,889,589,345.20/86,860.42
  6. Step 6: Final answer
    x = 67,805.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.